import sys
script, encoding, error = sys.argv


def main (language_file, encoding, errors):
    line = language_file.readline()

    if line:
        print_line (line, encoding, errors)
        return main (language_file, encoding, errors)


def print_line(line, encoding, errors):
    next_lang = line.strip()
    raw_bytes =  next_lang.encode(encoding, errors = errors)
    cooked_string = raw_bytes.decode(encoding, errors = errors)

    print (raw_bytes, "<==>", cooked_string)


languages = open ("languages.txt", encoding = "utf-8")

main(languages, encoding, error)
